Door-lock mechanism



W. J. HOSCEIT.

DOOR LOCK MECHANISM.

APPLICATION FILED OCT. 25. 1917 Patented July 29, 1919.

2 SHEETSSHEET l THE COLUMBIA PLANOGRAPH co., WASHINGTON, D. c.

W.J. HOSCEIT.

DOOR [OCK MECHANISM.

APPLICATION FILED 0CT.25. 1917 1,3 1 1,561 Patented July 29, 1919.

2 SHEETS-SHEET 2.

' Z0 Z9 19 w j Ina/e zz/tfmJyog eai THE COLUMBIA PLANOURAPH cm, WASHINGTUN, n. c.

WILLIAM JOSEPH HOSCEIT, or cr IoAeo,

orrio.

ILLINOIS.

noon-Loo MECHANISM.

Specification of Letters Patent.

Patented July 29, 19.19.

Application filed October 25: 1917. Serial No. 198,444.

To all whom it may concern:

Be it known that I, WVILLIAM Josnrn Hoscnrr, a citizen of the United States, and resident of Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Door-Lock Mechanism, of which the following is; a specification.

This invention relates to railway cars and more particularly to door lock mechanism therefor.

One of the objects of my invention is to make it necessary to open a given door on railway cars before a second given door can be opened.

Another object is to make it necessary to close 'a given door of a railway car before a second given door can be closed.

Another object is to interlock a plurality of railway car doors to meet the various requirements for successful commercial use.

These and other objects are accomplished, generally speaking, by providing in. a railway car, the combination of a plurality of doors and lock means associated therewith whereby said doors must be actuated in a. given sequence.

The invention is illustrated on the accompanying sheets of drawings, in which,

Figure 1 is a fragmentary sectionalplan view taken in the plane of line 1-1 of Fig; 2 showing the floor in plan and embodying my invention;

Fig. 2 is a fragmentary side elevation of a freight car showing the interlock between the side door and drop doors of the car Fig. 3 is a fragmentary sectional view ofa car taken in the plane of line 3-3 of-Fig. 2, showing the drop doors in raised or closed position,

Fig. 4 is a similar sectional view showing the drop doors in lowered or open position;

Fig. 5 is a detail side elevation of the lock actuating mechanism;

Fig. 6 is a detail sectional view of the same taken in the plane of line6=6 of Fig. 5; and 3 Fig. 7 is a detail view taken in the plane of line 7-7 of'Fig'l, showing means for locking the drop doors in closed position. i

The various novel features of my invention will be apparent from the following description and drawings, and will be particularly pointed out in the appended claims.

This invention has particular-reference to thattype of railway freight car which has doors in its floor and also; at the sides whereby the car. not, only may be used for carrying various "kinds of material which maybe dumped by operating the doors, but also, a car which is suitable for carrying cattle and the like, in which case, it is necessary that the drop doors be positively locked intheir upper or closed position.

By referring to the figures, of the draw- 1ngs,it will be noted that we have shown a freight car 10 having acenter sill 11, an in-v termediate sill-12 and a side sill 13, which support portions of the floor 14.. Both sides of the car being the same, only one side will be, considered detail.

- Pivotally connected to the floor 14c orto the intermediate sill 12, or to both, are a plurality of drop doors 15 which are 31", ranged to swing downwardly and inwardly toward the center of the car for the purpose of. dumping the contents of the car. These drop doors 15 normally are held intheir raised or closed position by fourshafts 16, one for each quarter of thecar, or in other words, two oneach side of the carrunning lengthwise thereof. As shown in Fig. 8, the drop .doors15 are held in closed position by one of the shafts. 16, said shaft occupying a recessed portion 17 formed in acasting or forging 18. extending transversely of the car and also having a central'opening 19 in which the shaft 16 may move laterally with respect to the car. This member 18 is provided with an inclined portion 20 down which the shaft 16, rolls when the shaft is being moved toward thecenter of the car for permitting the drop doors to open. The actuating mechanism for the shaft 16' may be of any suitable type, such forinstance, as that shown in my co-pending application Serial No.190,50.5, filed September 10, 1917, including sets of chains, each set including two chains 21. and 22, the former having one end secured to the side sill 13 and the. other end securedto a. sheave 23'1nountedon the shaft 16, and the other chain having one end connected to vtheintermediate sill 12 andits other end connected to another sheave 24 also secured to the shaft 16. It is apparent, therefore, that if the shaft is rotatedin a clockwise direction, as shown in Figs. 8 and 4:, that the shaft will be moved to the right toward the center of the car whereupon the chain 21 will beunwound from its sheave and chain 22 .woundupon its sheave.

Each side 25 of the car is provided with a door 26 which, as usual, is mounted for a sliding movement longitudinally with respect to the car. It is with respect to the side doors 26 and the drop doors 15 that we are particularly concerned; that is to say, that in such a combination car we want to make it impossible to open the drop doorsbeforethe side doors are opened and also to make it impossible to close the'side doors unless the drop doors are closed.

The lock mechanism by means of which such is made possible, includes transversely movable lock members-27 pivotally connected at 28 to retaining members 29 the former being slidable through guide casting 30, (see Figs. 3, 4 and 7) secured to the side sills 13 and also'being slidable in a casting 31 secured to the under structure of the car. This member 31 may be in a single casting, or it may be built up in any suitable manner whereby side walls are provided in which there are elongated slots 32 in which the pin 28 connecting the lock member 27 and member 29 may slide and by means of which the movements of the lock member 27 and the retaining member 29 are limited. r

' As shown in Fig. 3 of the drawing, the member 29 is in a raised position, its notched portion; 34 receiving the shaft 16 in such a .manner that the shaft is locked against lateral movement. The member 29 in turn is held in its raised position through the cooperation of the lock member 27 and a key 35, which, as shown in Fig. 3, occupies a notch 36in the lock member 27. In other words, with the parts as shown in Fi 3 7 it is impossible for.the lock member 2? to move toward the right and therefore impossible for the member 29 to move to the right and downwardly thereby preventing lateral movement of the shaft 16 to the right and preventing opening of the drop doors 15. In order that the drop doors may be opened, it is necessary that the key 35 be operatively disengaged from the notch 36 in the lock member 27. When the key 35 is moved out of the locking position with respect to the lock 27, the shaft 16 may be actuated toward the center of the carwhereupon the drop doors 15 maymove into an open position where they may rest upon suitable stops 37. It will benoted that a portion of the member 29 falls into engagement with, is received by and rests in'the inclined channel portion 38 of the member 31 with the projection 39, forming one of the walls of the notch 34, below the path of movement of the shaft 16 whereby the latter. may freely move to the right. It will be noted also that the pin 28 occupies the inner end of the slot 32 in the member 31. l

By referring to Figs. 1 and 2 of the draw ings, it will be noted that'the key 35 extends longitudinally of the car. As shown, the key is in looking position to prevent not only an inward unlocking sliding movement of the lock 27, but also to prevent an inward unlocking sliding movement of another lock 40, which is associated with the second shaft section 16. If the key 35 is shifted to the right from the position shown in Fig. 2, a notch 41, formed near the right hand end of the key 35, will pass into a position to permit the lock 27 to move inwardly and at the same time the left hand end of the key 35 will move out of a notch in look 40 corresponding tothe notch 36 in lock 27 to permit the lock 40 to :move inwardly whereupon the parts may change their various positions from that shown in Fig. 3, to the positions shown in Fig. 4; or in other words, the drop doors are permitted to move from a closed position to an open position.

'The key 35 is actuated by means of a pinion 42 which meshes with a tooth portion 43 of the key 35. The pinion 42 is preferably formed integrally with a member 44 pivotally mounted upon a shaft 45 which is supported by the side sill 13. The member 44 is provided with a notch 46 for the reception of a projection 47 on a dog 48 pivotally mounted at 49 to any suitable support, said dog having an upwardly extending projection 50 which lies directly below the lower edge of the side door 26, so that it is impossible to rotate the member 44 in a clockwise direction to shift the key 35 to an unlocking position unless the door 26 is opened or moved beyond the projection 50.

By means of this locking arrangement it is apparent that with the parts as shown in Figs. 1, 2 and 3, it is impossible to unlock the drop doors 15 until the side doors 26 are moved into an open position. WVhen the side doors 26 are moved into an open position beyond the projection 50, the member 44 may be rotated in a clockwise direction as viewed in Fig. 2 to shift the key 35 to the right to release the shafts 16 whereupon the drop doors may be moved to an open position. WVhen the projection 47 is locked within the notch 46 of the member 44, it is impossible to shift the key 35. However, with the side door moved beyond the projection 50, the projection 47 of the dog 48 may be moved out of the notch 46 whereupon the key 35 may be actuated by a rotation of member 44 for releasing the drop doors 15.

It will be noted that after the projection 47 is moved out of the notch 46, and the member 44 is rotated for actuating the key 35, the projection 47 will ride upon the shoulder 51 of the member 44 whereupon the projection 50 will be held up in a position to prevent closing of the side door 26. Itis apparent therefore that before the side door can be moved to a closed position, it is necessary first that the drop doors be moved, into a neu er closed position and locked; before the,' notch 46 of member 44: will present itself to receive the projection 47 of the dog 48. As soon as the notch 46 is placed in a position to receive the projection 47 the dog 48 will swing downwardly about its pivotalpoint 49 to carry the projection 50 below the path of movement-of the side door whereupon the latter may be moved intoa closed position. a

It is necessary that the drop doorsl5 be completely raised to their closed position before they may be locked in such position by the key 35 cooperating with thelocks 27 and 40.. When the drop doors, 15 are moved into their closed position and the key 35 is moved into position shown in Fig. 3 of the drawings and theside door is moved back into its closed position, the drop doors 15. will be prevented from being opened accidentally, or as a matter of fact, be prevented fronrbeing opened in any manner whatsoever until the side door 26 again is moved intoan open position or beyond the projection 50 0f the member-44. The locking mechanism intermediate the side doors and the drop doors forms an eflicient interlock between said parts.

It is apparent that theremay be various modifications of the arrangement herein particularly shown and described, andit is my intention to cover all such modifications which do not involve a departure from the spirit nd scope of theinvention as set forth in the following claims.

1. In a railway car, the combination of a movably mounted doorin the floor of: the car, aside door at all .timesout of engagement with said floor door, and means as sociatedwith said-doors whereby the side door must be opened before the other door can be opened.

:2. In a railway car, the combination of a plurality of movably mounted doors located in different'parts of the car and out of engagement with eachother, and means associated therewith whereby one of said doors must be opened before another of said doors can be opened. 7

3. In a railway car, the combination of a plurality of movably mounted doors located in diiferent parts of the car and out of engagement with each other, and means associated with said doors whereby one of said doors must be actuated before the other can be actuated.

4:. In a railway car, a movably mounted door mounted in the floor of the car, a movably mounted door on one of the walls of the car, said doors at all times being out of engagement with each other, and means associated with said doors whereby it is necessary to actuate the wall door before the floor door can be actuated.

5. In a railway car, a movably mounted door mounted in the floor of the. car, a movablyzmo-unted door in one of-the walls of the car, and. means whereby under certain conditions the floor doors must fore the wall door can be actuated.

6. In a railway. ear, the combination of a door movably mounted in the floor of the car, a door movably mounted onthe side of the car, and means associated withv said doors whereby the side. door must be opened before the floor door can be opened and whereby the floor door'must be closed before the side door. can be closed.

7. In arailway car, the combination of a plurality of. car doors located in different partsofthe car and-out of engagement with each other, and means associated with said doors whereby the same must be actuated in a given sequence. w '8. In a railway car, the combination of a plurality of doors located in different parts of the. car and out of engagement with each other, and an interlock between said doors.

9. In arailway car, the combinationof a doormovably mountedin the floor of the car, adoor movably mounted on a side of the car, and separate-interlock mechanism between said-doors.

10. In a railway car, the combination of a movably mounted door in one portion of the car, a second movably mounted door in another portion of the. car, a lock member which takes-a given position when one of said doors is closed, and a key member having a locking action on said lock member when the other door is closed.

'11. In a railway car, the combination of a movably mounted door in-the floor of the car, a side door for the car, tnd separate interlock mechanism between said doors which comprise relatively movable members.

12. In a railway car, the combination of a movably mounteddoor in the floor of the car, a side door for the car, an interlock between said doors including a transversely movable member associated with one of said doors, and a longitudinally movable cooperating member associated with another of said" doors.

13.- In a railway car, the combination of a door in the floor of the car, a side door for the car, and locking means for said doors interposed between the same and including a notched member and a movably mounted iiember cooperating with said notched mem- 1 er.

14. In a railway car, the combination of a door movably mounted in the floor of the car, a side door for the car, a member normally holding the floor door in its closed position, a member for retaining said holding member in such position, a lock member connected to said retaining member, and locking. means associated with the other door and cooperating with said lock member.

be actuatedbe- 15. In a railway car, the combination of a movably mounted door in the floor of the car, a side door for the car, a member normally holding the floordoorin closed position, a notched member for normally'retaining the holding member in a given posi tion, a lock member for holding said retaining member in a given position, and a movable key associated with the other door for locking the lock member in a given posi tion. 4"" 16. Ina railway car, the'combi'nation of a movably mounted'door in'the floor of the car, a side door for the car, a'member normally holding the floor door in'closed position, a notched member for normally retaining the holding member in a given position, a lock member for holding said retaining member in a given position, a movable key associated with the other door for look ingthe lock member in a given position, and means for actuating said key member. 17. In a railway car, the combinationof a movably mounted door in the floor of the car, a. sidefdoor for the car, a member normally'holding the floor door in closed position,:a.notohed member for normally retaining the holding member in agiven position, a lock member for holding said retaining member in agiven position,v a movable key associated'with the other door for-locking the lock member in a given position, and

, means controlled by the position of the side doorfor actuating'said key member. 18. In a railway car, the combination of a movably mounted door in the floor of-the car, a side door for the car, a member normally holding the floor door inclosed position, a notched member for normally retaining the holding member in a given position, a lock member for holding said retaining member in a given position,- a movable key associated with the other door for'locking the lock member in a given position, and guide means for said retaining member and lock member. 19. In a railway car, aplurality of mov- Oopies of this patent may be obtained for five cents each, by Washington, D. 03"

ably. mounted doors and locking mechanism between-said doors including a member normally holding one of sald doors in a given position, a. member for locking the holding member'in said position, and a guide member in whichisaid holding member and lock member are movably and guidably mounted.

20. In a railway car, the combination of a plurality of movable doors, and locking mechanism between said doors including a member for normally holding one of said doors in a given position, a lock member pivotally connected to said holding member, and a guide member in which the holding member and locking member are movably doors, and I therebetween including a movably mounted 7 locking member,

oiatedwith, said when one ofsaid doors is in a given position. r V V 23. In a railway car, the combination of a plurality of movably mounted doors, and means extending between said doors whereby it is necessary that one of said doors be opened before the other one can be opened,

means for actuating said 'member, and a 'pivotally mounted dog assomeans for locking the latter and means under certain conditions eXtending in the path of movement of one of said doors whereby one of said doors must be closed before the other of said doors can be closed. e

Signed at city of Chicago, State of Illinois, this 25th day of September, A. D. 1917. I WILLIAM JOSEPH HOSOEIT.

addressing the Gommissionex; of Patents, 

